Annual R.O.P. and performance test summary, 1956-1957
Series: ARS 44 -- 7 (1956/57); ARS 44 -- 7.
Publisher: United States Department of Agriculture, Agricultural Research Service
Published: 1958
Place of publication: [Washington, D.C.]
Language: eng
Number of pages: 23
Subjects: Poultry; Statistics; Breeding; Eggs; Production; National Poultry Improvement Plan (U.S.)
Other titles: Annual ROP and performance test summary, 1956-1957
Notes: Cover title.

"March 1958."

"Cooperating in the National Poultry Improvement Plan."

"Information in this report was compiled by the Animal Husbandry Research Division, Agricultural Research Service"--Page 3.